High Back up
With BMS Protection
4AH High capacity
5Amps Powerful Discharge Current
Auto Cutoff feature
 
Its 7.4v 2S lithium ion battery with a capacity of 4000 mah or 4AH.Battery is lithium ion type and rechargeable. Its BMS protected Battery pack. BMS rating is 2s5A. Best for using in 5 to 9v motor, rc cars etc.Battery Specification
Specification- 
BMS- 2S 5A
Battery full charge Voltage 8.4v
Battery normal use voltage 7.4v
Battery least Voltage 6.4v.
Charger should charge at 8.4v.